From the performance perspective, this is considered a very efficient join operation, because the cost for scanning the inner table is optimal via unique access through a unique index.
从性能的角度来看，这被认为是一个非常有效的联接操作，因为通过贯穿唯一索引的唯一访问扫描内部表的成本是最优的。
The optimizer relies on statistics to properly cost alternative query execution plans (QEPs) and choose the most optimal plan.
优化器是依靠统计信息来计算可选查询执行计划（QEP）的开销，同时选择出最优的计划。
If the cost estimatd does not correctly describe the real cost during SQL execution, the access plan picked by the optimizer may not be optimal.
如果评估得到的开销不能够正确反映SQL执行中的实际开销，那么优化器所选择的存取计划可能不是最优的。
WebSphere Federation Server USES its cost based optimizer in order to determine the optimal access path to retrieve and process the data.
WebSphereFederationServer使用它的基于成本的优化器，确定检索和处理数据的最佳路径。
Therefore, the question becomes how to prioritize the test scenarios, and how much testing achieves an optimal balance between the cost and benefit.
因此，问题变成了如何对测试场景进行优先顺序设置，以及多少测试工作能够实现成本和效益之间的最优化。
After detailed analysis this ratio has been found to be optimal for Lufthansa for both cost and risk reasons.
经过详细分析后发现，这个比例已经是最佳的汉莎航空公司的成本和风险的原因。
Optimal placement of switch device is a combinatorial optimization problem with reliability cost objective function.
分段开关优化配置是一种以可靠性费用最小为目标函数的组合优化问题。
The method of ANN model can not only decrease the cost of research but get the applicable optimal conditions of the technics.
该法不仅可以减少实验成本而且能够提供较为可信的最优工艺条件，具有一定的实用价值。
This paper tries to discuss optimal capital structure decision based on transaction cost view of firm.
本文试图基于企业的交易成本观点来探讨最优资本结构决策问题。
By simulating analysis, the optimal parameters, Numbers and type of construction machinery can be obtained, and the smallest cost and shortest period of construction projects can be predicted.
通过仿真分析，可以对施工机械的机型、数量以及作业参数作出最佳选择，并且预测出施工的最短工期和最低施工费用。
Aiming at the problem of software system reliability and cost distribution, an optimal model for software component cost distribution based on reliability is proposed.
针对软件系统可靠性和费用分配问题，给出了一种基于可靠性的软件构件费用分配最优模型。
Also, the conditions of the "fail-stop" strategy, optimal cost function and optimal control function are given.
给出了“跳一停”策略存在的条件、最优费用函数、最佳控制的解析式及控制方法。
And in macroscopic view, it also helps reduce the whole cost for environmental control and optimal allocation of resources in the whole society.
宏观上，排污权的交易有利于降低整个社会控制环境总成本和实现资源优化配置。
Optimal set-point control method is applied into this system, production cost and quality of sewage have been decreased and improved greatly.
其优化设定控制方法的应用，提高了污水处理质量，降低了污水处理成本。
According to MM theory with bankruptcy cost and tax, capital adequacy regulations are fully effective only if the capital ratio stipulated by management and optimal capital structure is consistent.
按照存在破产成本和税收情况下的MM理论分析，只有管理当局确定的资本比率和银行最佳资本结构一致时，资本充足性管制才是完全有效的。
This paper is concerned with the problem of a novel Q-learning algorithm for solving optimal cost function.
该文利用求解最优费用函数的方法给出了一种新的Q学习算法。
In addition, optimal set-point control method is applied into this system, quality of sewage and production cost have been improved and decreased greatly.
另外将优化设定控制方法应用到该系统中，提高了污水处理质量，降低了污水处理成本。
Study on the mathematical mode of mine workings advance direct cost, Optimal design and elect position of mine workings based on this mode. Search for the best economic benefit.
研究了井巷掘进直接成本数学模式，以此进行井巷位置的优化设计和选择，以求达到最佳经济效益。
Comparison of productive method, energy consumption, product quality and productive cost is emphasized, for optimal technical decision in the prophase project.
着重对烧碱的生产方法、能源消耗、产品质量、生产成本进行比较，为项目前期工作优化技术决策。
How to attain the satisfied quality with the optimal cost in order to acquire the maximal economic benefit, is the work keystone of the quality cost management of the building companies.
如何实现以最佳的成本达到满意的质量，以期获得最大的经济效益，是建筑施工企业质量成本管理的工作重点。
There are two approaches generally to solving optimal decision, the one for maximum reward, the other for optimal cost.
求解最优决策一般有两种途径：一种是求最大奖赏方法，另一种是求最优费用方法。
There are two approaches generally to solve optimal decision, the one for maximum reward, the other for optimal cost.
求解最优决策一般有两种途径，一种是求最大奖赏方法，另一种是求最优费用方法。
Firstly, an optimal equation which can determine optimal supervisor is established by introducing the definitions of cost function, objective function and optimal function.
首先，通过引入费用函数、目标函数以及最优函数的定义，建立了可以确定最优监控器的最优方程。
Discusses the design of an observer-based optimal guaranteed cost controller for a class of singular systems with state-delay and parameter uncertainties.
讨论一类含有参数不确定性且具有状态滞后的广义时滞系统的观测器型最优保成本控制器设计问题。
The operation cost method relatively has more advantages, which is the optimal selection of cost calculation method in modern enterprise cost management.
作业成本法相对来说优点更多，是现代企业成本管理中成本计算方法的最佳选择；
In the process of control design, the sliding surface of sliding mode control is determined by minimizing the optimal cost function, and the controller is the saturation controller.
在设计控制系统时，滑模控制滑模面通过最小化最优价值函数得到，控制器采用饱和控制器。
In the process of control design, the sliding surface of sliding mode control is determined by minimizing the optimal cost function, and the controller is the saturation controller.
在设计控制系统时，滑模控制滑模面通过最小化最优价值函数得到，控制器采用饱和控制器。
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